ammeter swinging wildly
Thread Starter
Intermediate
Joined: Apr 2005
Posts: 30
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ammeter swinging wildly
My ammeter on my 68 has started jumping all over the place, not so bad when cold but as engine warms it get real bad. It holds steady until about 2000rpm (vibration?). Also the key buzzer has recently quit working but I didn't give it much thought. Any ideas where to start looking, horn relay? or voltage regulator?
Thanks
Rog
Thanks
Rog
Race Director
Joined: Sep 2002
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From: San Diego - Deep Within The State of CONFUSION!
Originally Posted by 68-427
My ammeter on my 68 has started jumping all over the place, not so bad when cold but as engine warms it get real bad. It holds steady until about 2000rpm (vibration?). Also the key buzzer has recently quit working but I didn't give it much thought. Any ideas where to start looking, horn relay? or voltage regulator?
Thanks
Rog
Thanks
Rog
Race Director
Joined: Feb 1999
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From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
I would check the connections on the horn relay for corrosion and then make sure the connection is tight. Also there is a fusible link on the horn relay that is in line with your ammeter. This may also be suspect and could be open.
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Make sure to post back what you find out is the problem. May be helpful when someone is doing a search for a similiar problem.
Race Director
Joined: Sep 2002
Posts: 10,362
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From: San Diego - Deep Within The State of CONFUSION!
Originally Posted by Aflac
get a good look at your plug wires too.. a burnt one will cause the same symptoms
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Pro
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From: Southeast WI
Please pardon this dumb question... where is the voltage regulator and how difficult is it to replace?
My ammeter dances also and I just figured it was supposed to do that. Maybe my car has the same problem.
Thanks!
My ammeter dances also and I just figured it was supposed to do that. Maybe my car has the same problem.
Thanks!
Thread Starter
Intermediate
Joined: Apr 2005
Posts: 30
Likes: 0
The voltage regulator is separate from the alternator on early corvettes, it is located on the left front wheel well, the horn relay is right beside it. It is easy to replace and inexpensive. You might want to check the connections to the regulator and horn relay before replacing it.
Good luck!
rog
Good luck!
rog